Home / 27,638.20-41,449.20-12,843.55

Finding the Fourth Proportional to 27,638.20, 41,449.20 and 12,843.55

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Solution

The fourth proportional to 27,638.20, 41,449.20 and 12,843.55 is: 19,261.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,638.20 : 41,449.20 = 12,843.55 : x
  2. Step 2: Convert to fraction form
    27,638.20/41,449.20 = 12,843.55/x
  3. Step 3: Cross multiply
    27,638.20x = 41,449.20 × 12,843.55
  4. Step 4: Simplify right side
    27,638.20x = 532,354,872.66
  5. Step 5: Solve for x
    x = 532,354,872.66/27,638.20
  6. Step 6: Final answer
    x = 19,261.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.